| 摘要 |
The present invention provides a novel 6-nitroprostaglandin derivatives of the formula (I) <IMAGE> (I) wherein A, n, R1, R2, R3, R4 and R5 are as defined in claim 1. The 6-nitroprostaglandin derivatives is useful as medicines because of its excellent pharmacological activities including platelet aggregation inhibiting activity, blood pressure lowering activity and anti-ulcerous activity, and useful as intermediate for other pharmaceutically active compounds such as 6-oxoprostaglandin derivatives, prostaglandin E1 derivatives, etc.
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